74064761 has 6 divisors (see below), whose sum is σ = 77425530. Its totient is φ = 70844048.

The previous prime is 74064751. The next prime is 74064763. The reversal of 74064761 is 16746047.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 63696361 + 10368400 = 7981^2 + 3220^2 .

It is a de Polignac number, because none of the positive numbers 2^k-74064761 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (74064763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 69476 + ... + 70533.

It is an arithmetic number, because the mean of its divisors is an integer number (12904255).

Almost surely, 2^74064761 is an apocalyptic number.

It is an amenable number.

74064761 is a deficient number, since it is larger than the sum of its proper divisors (3360769).

74064761 is a wasteful number, since it uses less digits than its factorization.

74064761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140055 (or 140032 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 74064761 is about 8606.0886005200. The cubic root of 74064761 is about 419.9560819535.

It can be divided in two parts, 7406 and 4761, that added together give a cube (12167 = 23³).

The spelling of 74064761 in words is "seventy-four million, sixty-four thousand, seven hundred sixty-one".